Question

СРОЧНО!!!!!!!!!!!!!!!!

Answer 1

Ответ:

1) 6mn-3m+2n-1=3m(2n-1)+(2n-1)=(3m+1)(2n-1)

2) xa-xb²-ya+zb²-za+yb²=(xa-b²)-(ya-yb²)-(za-zb²)=x(a-b²)-y(a-b²)-z(a-b²)=

=(a-b²)(x-y-z)